1D QRD Construction Specs

[tubalicious]

I had a previous thread that put a nice set of plans in my hand but brought up a new question;

The PDF that was provided is excellent but only shows one size with a 9" depth.. I have 12" X 8" finished wood and was hoping to rip them down the centre. How do I calculate the sequence and depths for a 6" frame and will 6" be sufficient? Also, the wall it will be affixed to is a 2" X 6" studded, rock wool filled and fabric covered. Will the space above and below absorb enough to be sufficient bass trapping?

Thanks.

[Ethan Winer]

This is excellent:

Acoustic Calculator

Will the space above and below absorb enough to be sufficient bass trapping?

Above and below extends to the floor and ceiling? Sure, that's a great place for bass trapping.

--Ethan

[Glenn Kuras]

Originally Posted by Ethan Winer

This is excellent:

Acoustic Calculator


.

--Ethan

wow Ethan, I just added that to my bookmarks. thumbsupthumbsupthumbsup

[Tom H]

Originally Posted by Ethan Winer

This is excellent:

Acoustic Calculator

Wow, this is a really cool tool! For fun I entered values for a skyline diffusor with a very broad reach (100 Hz -10 KHz) it basicly gives you a design in the lines of the walls in Blackbird Studio C.
StudioVisa - Recording Studio Virtual Tours

Entering values from 860 - 3440 Hz gives you a very standard skyline, wich should be very easy to build.

Also a "standard" QRD design has depths in multiples of 1 inch or ca 2,5 cm and seems very easy to build.

I recommend everyone playing with this thing a little; it makes you understand the whole concept of room treatment a lot better... for instance why basstraps are the only cure for smaller rooms! thumbsup